The picture shows the block region demonstration of a Drupal theme that I am using.
I am new to Drupal.
As the structure is given, I want to use different structure in different pages of my site. Say, at home page I want to use all the block regions Left Sidebar, Content and Right Sidebar. But for another page(one of the main navigation) I only want to use one of the sidebars with content and leave other sidebar. Also I want to add custom blocks at various regions on different pages.
Is this possible? If yes, how should I do it?